Sewing machine



FIG. 1 is a front elevation of the sewing machine showing my new design;

FIG. 2 is a rear elevation of the sewing machine;

FIG. 3 is a plan view of the sewing machine;

FIG. 4 is an underside plan view of the sewing machine;

FIG. 5 is a side elevation of the sewing machine taken from the left hand side of FIG. 1;

FIG. 6 is a side elevation of the sewing machine taken from the right hand side of FIG. 1; and,

FIG. 7 is a perspective view of the sewing machine taken from the front and left sides thereof as shown, respectively, in FIGS. 1 and 5. 

The ornamental design for a sewing machine, as shown. 